EP4336497A3 - Multisignal encoder, multisignal decoder, and related methods using signal whitening or signal post processing - Google Patents

Multisignal encoder, multisignal decoder, and related methods using signal whitening or signal post processing Download PDF

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Publication number
EP4336497A3
EP4336497A3 EP24153258.9A EP24153258A EP4336497A3 EP 4336497 A3 EP4336497 A3 EP 4336497A3 EP 24153258 A EP24153258 A EP 24153258A EP 4336497 A3 EP4336497 A3 EP 4336497A3
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EP
European Patent Office
Prior art keywords
signal
multisignal
encoder
signals
preprocessing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24153258.9A
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German (de)
French (fr)
Other versions
EP4336497A2 (en
Inventor
Eleni FOTOPOULOU
Markus Multrus
Sascha Dick
Goran MARKOVIC
Pallavi MABEN
Srikanth KORSE
Stefan Bayer
Sascha Disch
Jürgen HERRE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Publication of EP4336497A2 publication Critical patent/EP4336497A2/en
Publication of EP4336497A3 publication Critical patent/EP4336497A3/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16Sound input; Sound output
    • G06F3/162Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)

Abstract

A multisignal encoder for encoding at least three audio signals, comprises: a signal preprocessor (100) for individually preprocessing each audio signal to obtain at least three preprocessed audio signals, wherein the preprocessing is performed so that a preprocessed audio signal is whitened with respect to the signal before preprocessing; an adaptive joint signal processor (200) for performing a processing of the at least three preprocessed audio signals to obtain at least three jointly processed signals or at least two jointly processed signals and an unprocessed signal; a signal encoder (300) for encoding each signal to obtain one or more encoded signals; and an output interface (400) for transmitting or storing an encoded multisignal audio signal comprising the one or more encoded signals, side information relating to the preprocessing and side information relating to the processing.
EP24153258.9A 2018-07-04 2019-06-27 Multisignal encoder, multisignal decoder, and related methods using signal whitening or signal post processing Pending EP4336497A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18181767 2018-07-04
EP19732704.2A EP3818520B1 (en) 2018-07-04 2019-06-27 Multisignal audio coding using signal whitening as preprocessing
PCT/EP2019/067256 WO2020007719A1 (en) 2018-07-04 2019-06-27 Multisignal audio coding using signal whitening as preprocessing

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19732704.2A Division EP3818520B1 (en) 2018-07-04 2019-06-27 Multisignal audio coding using signal whitening as preprocessing

Publications (2)

Publication Number Publication Date
EP4336497A2 EP4336497A2 (en) 2024-03-13
EP4336497A3 true EP4336497A3 (en) 2024-03-20

Family

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EP24153258.9A Pending EP4336497A3 (en) 2018-07-04 2019-06-27 Multisignal encoder, multisignal decoder, and related methods using signal whitening or signal post processing
EP19732704.2A Active EP3818520B1 (en) 2018-07-04 2019-06-27 Multisignal audio coding using signal whitening as preprocessing

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EP19732704.2A Active EP3818520B1 (en) 2018-07-04 2019-06-27 Multisignal audio coding using signal whitening as preprocessing

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US (1) US20210104249A1 (en)
EP (2) EP4336497A3 (en)
JP (2) JP7384893B2 (en)
KR (1) KR102606259B1 (en)
CN (1) CN112639967A (en)
AR (1) AR116665A1 (en)
AU (2) AU2019298307A1 (en)
BR (1) BR112020026967A2 (en)
CA (1) CA3105508C (en)
MX (1) MX2020014077A (en)
RU (1) RU2769788C1 (en)
SG (1) SG11202012936VA (en)
TW (1) TWI720530B (en)
WO (1) WO2020007719A1 (en)
ZA (1) ZA202100719B (en)

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US11664037B2 (en) * 2020-05-22 2023-05-30 Electronics And Telecommunications Research Institute Methods of encoding and decoding speech signal using neural network model recognizing sound sources, and encoding and decoding apparatuses for performing the same
CN113948095A (en) * 2020-07-17 2022-01-18 华为技术有限公司 Coding and decoding method and device for multi-channel audio signal
CN113948097A (en) * 2020-07-17 2022-01-18 华为技术有限公司 Multi-channel audio signal coding method and device
CN113948096A (en) * 2020-07-17 2022-01-18 华为技术有限公司 Method and device for coding and decoding multi-channel audio signal
CN114023338A (en) * 2020-07-17 2022-02-08 华为技术有限公司 Method and apparatus for encoding multi-channel audio signal
KR20220151953A (en) * 2021-05-07 2022-11-15 한국전자통신연구원 Methods of Encoding and Decoding an Audio Signal Using Side Information, and an Encoder and Decoder Performing the Method
CN115472171A (en) * 2021-06-11 2022-12-13 华为技术有限公司 Encoding and decoding method, apparatus, device, storage medium, and computer program
WO2023113490A1 (en) * 2021-12-15 2023-06-22 한국전자통신연구원 Audio processing method using complex number data, and apparatus for performing same
WO2023153228A1 (en) * 2022-02-08 2023-08-17 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Encoding device and encoding method
GB2624890A (en) * 2022-11-29 2024-06-05 Nokia Technologies Oy Parametric spatial audio encoding

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Publication number Publication date
EP3818520B1 (en) 2024-01-24
JP2021529354A (en) 2021-10-28
AU2019298307A1 (en) 2021-02-25
TWI720530B (en) 2021-03-01
CA3105508A1 (en) 2020-01-09
KR20210040974A (en) 2021-04-14
AU2022235537A1 (en) 2022-10-13
BR112020026967A2 (en) 2021-03-30
RU2769788C1 (en) 2022-04-06
TW202016924A (en) 2020-05-01
US20210104249A1 (en) 2021-04-08
WO2020007719A1 (en) 2020-01-09
JP7384893B2 (en) 2023-11-21
EP3818520C0 (en) 2024-01-24
AR116665A1 (en) 2021-06-02
SG11202012936VA (en) 2021-01-28
MX2020014077A (en) 2021-03-09
ZA202100719B (en) 2022-08-31
CN112639967A (en) 2021-04-09
CA3105508C (en) 2024-03-26
EP4336497A2 (en) 2024-03-13
KR102606259B1 (en) 2023-11-29
JP2024010207A (en) 2024-01-23
EP3818520A1 (en) 2021-05-12

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